矽力杰SY7304

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1、ApplicationsNote:SY7304HighEfficiency33V,4A,1MHzStepUpRegulatorGeneralDescriptionFeaturesTheSY7304isahighefficiency,current-modecontrol·Wideinputrange:3-33VBoostregulator.Thedeviceintegratesa120mΩlow·Maximumoutputvoltage:33VRDS(ON)N-channelMOSFETforhighefficienc

2、y.The·1MHzswitchingfrequencyfixed1MHzswitchingfrequencyandinternal·Integrated120mΩRDS(ON)switchwith4Apeakcompensationreduceexternalcomponentssizeandcurrentcapabilitycount.Thebuild-ininternalsoftstartcircuitry·Internalsoft-startminimizestheinrushcurrentatstart-up

3、.·0.6V±2%referencevoltageTheSY7304isavailableincompactDFN3×3-10package.·Cyclebycyclepeakcurrentlimit·OvertemperatureprotectionOrderingInformation·RoHSCompliantandHalogenFree·Compactpackage:DFN3×3-10SY7304□□□(□□)□□□TemperatureCodePackageCodeApplicationsOptionalSp

4、ecCode·PortableDeviceOrderingNumberPackagetypeNote·BatteryPoweredSystemSY7304DBCDFN3×3-104A·NetworkingcardspoweredfromPCIorPCI-expressslotsTypicalApplicationsFigure1.SchematicDiagramFigure2.Efficiencyvs.LoadCurrentAN_SY7304Rev.0.9SilergyCorp.Confidential-Prepare

5、dforCustomerUseOnly1殷先生：13380368939QQ：719307610SY7304Pinout(topview)NC110NCFB29ENNC311GND8NCLX47INLX56NC（DFN3×3-10）TopMark:VIxyz(Devicecode:VI,x=yearcode,y=weekcode,z=lotnumbercode)PinNamePinNumberPinDescriptionIN7Inputpin.DecouplethispintoGNDpinwith1uFceramicca

6、p.GND11GroundpinLX4,5Inductornode.ConnectaninductorbetweenINpinandLXpin.FB2Feedbackpin.ConnectaresistorR1betweenVOUTandFB,andaresistorR2betweenFBandGNDtoprogramtheoutputvoltage:VOUT=0.6V*(R1/R2+1).EN9Enablecontrol.Hightoturnonthepart.Don’tleaveitfloated.NC1,3,6,

7、8,10Noconnection.AbsoluteMaximumRatings(Note1)LX,IN,EN---------------------------------------------------------------------------------------------------------0.3Vto36VFB--------------------------------------------------------------------------------------------

8、------------------------0.3Vto4VPowerDissipation,PD@TA=25°CDFN3×3-10---------------------------------------------------------------------2.6WPackageThermalResistance(